How does the roll bar trim come off?

[Dale_K]

I have a plastic ticking sound behind my head that reveals itself when the car flexes or twists. At first I thought it was the radio speaker box but it still happens with that removed so then I thought it was the engine cover but adding a bunch of extra weatherstripping didn't make any difference.

Now I think it might be the trim pieces on the forward side of the roll bar and I want to take them off as an experiment but I don't see any fasteners. How does this trim come off? I figured I'd ask first before just yanking on it.

Any tips on getting rid of the plastic ticking sound would be appreciated in the event others have solved it. I'm only guessing about it coming from the roll bar trim, although I can produce some ticking sounds when I wiggle it around.